Submit Form Once

[Emmanuel]

Hi,

I have an asp.net page with a form, when submitted it sends an email and
moves to another page.
I would like to allow only the form to be submitted once, i.e. I don't want
the user to go back and submit again.

What's the best way to do this?

 

[Saravana]

First thing is, dont cache the page. When user submit the page just put a
flag in session variable and when he goes back you check for that flag and
disable that submit button. To know how to avoid caching, check out this
article
http://www.extremeexperts.com/Net/FAQ/DisablingBackButton.aspx

 

[Emmanuel]

Thanks!

What if i would still want to cache the page, is there another way?